So, he used his awesome Taichi SKILLZ against a big brawler with boxing gloves on, slipping on the floor in the process and getting the other guy DQed when he was standing up. Big deal is where again?

Obviously, that 200 pounder wasn't a wall of muscle and we don't know how well-trained he was, or what his gas tank was like, or how quick he was... or anything else... I would only expect a guy with a few years of kickboxing and in decent shape to do well in a situation like that.